Barium Titanate Nanoparticles Formed by Chlorine-Free Ambient Condition Sol Process Using Tetrabutylammonium Hydroxide

Figure 4

SEM images of BTO NPs synthesized with various TBAH molar ratios: (a) 0, (b) 0.1, (c) 0.3, and (d) 0.5 mol/L TBAH.

(a)

(b)

(c)

(d)